PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 367 
19. Dorosoma cepedianum (Le 8.) Gill. Mud Shad. 
The mud shad is a permanent resident, but it is said to be rare. 
20. * Carpiodes cyprinus (Le 8.) Agassiz. Carp Sucker. 
This handsome sucker is considered a pretty good food-fish, and is 
often supposed to be the German carp (Cyprinus carpio.) It is com- 
paratively abundant. 
21. * Catostomus teres (Mitch.) Le S. Black Mullet. 
This species arrives in February, spawns in creeks on gravel and rock 
bottom until March, and departs in May or June. It reaches 18 inches 
in length and 3 pounds in weight. 
22. Catostomus nigricans Le Sueur. Horn Mullet; Stone-roller. 
23. *Moxostoma macrolepidotum (Le 8.) Jor. Bay Mullet. 
24. * Semotilus bullaris (Raf.) Jor. Fall-fish; Chub. 
25. Notemigonus chrysoleucus (Mitch.) Jor. Roach. 
_ This is said to be present all the year. 
26. * Amiurus catus (L.) Gill. Cat. 
27. * Amiurus albidus (Le 8.) Jor. White Cat. 
28. * Anguilla rostrata (Le 8.) De Kay. Eel. 
The eel is a permanent resident. It is very destructive to spawning 
shad when these are caught in gill-nets, often completely disemboweling 
the fish before they can be taken from the nets. 
A very effective trap for the capture of eels is in use at Havre de 
Grace. It consists of a keg or barrel with gunny sack at one or both 
ends. In one end there is a funnel made of a stocking leg, or anything 
of a similar form that may be at hand, and this is fastened to the oppo- 
site end by four cords. Auger-holes are bored in the staves. Bricks 
or stones are placed inside to sink the trap. A line is attached for the 
purpose of lowering the contrivance, and to this a buoy is fastened to 
mark the place of setting. A small trap-door is made in the top of the 
keg to put in bait and remove the eels. Fish entrails and heads or stale 
fish are used for bait. 
29. Lepidosteus osseus (L.) Agassiz. Green Gar. 
This gar comes in May and is not plentiful. 
30. Acipenser oxyrhynchus Mitchill. 
A sturgeon which I suppose to be this species is common at Havre 
de Grace, coming in June or July, running into creeks, and leaving in 
September. 
31. Petromyzon marinus L. Sea Lamprey; Shad Lamprey. 
The sea lamprey comes up into the river to spawn about the time 
shad appear. The young of this species is apparently the “shad lam- 
prey ” of the fishermen. 
UNITED STATES NATIONAL MUSEUM, 
Washington, June 21, 1883. 
